SPECTRAL EFFICIENCY OF THE WESTERN FLOWER THRIPS, FRANKLINIELLA-OCCIDENTALIS
SPECTRAL EFFICIENCY OF THE WESTERN FLOWER THRIPS, FRANKLINIELLA-OCCIDENTALIS
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DOI：
10.1016/0022-1910(92)90122-t
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发表时间：
1992-06-01
影响因子：
2.2
通讯作者：
GILBERT, C
中科院分区：
文献类型：
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作者：
MATTESON, N;TERRY, I;GILBERT, C
西方花蓟马具有性二态群集行为，其中许多雄性（而不是雌性）聚集在花朵和仅某些颜色的人工基质上。为了测试这种行为二态性是否具有涉及外周视觉系统性别差异的生理基础，我们记录了365至620 nm的蓟马视网膜电图，并确定了光谱效率。蓟马的视网膜电图为相位紧张性角膜负电位，无OFF电位变化。与男性和女性的蓟马，我们的研究结果表明，两个峰值的光谱效率，一个在紫外线范围内，一个在可见光与λ（最大）约540 nm。两性之间的差异很小，女性在紫外线方面的效率高于男性。因此，在某些颜色的吸引力的西方花蓟马的性别差异不仅是由于光感受器的光谱特性的差异，但从更高阶的处理介导的男性的行为选择的结果。
Western flower thrips have sexually-dimorphic swarming behaviour in which many males (but not females) aggregate on flowers and artificial substrates of only certain colours. To test whether this behavioural dimorphism has a physiological basis involving gender differences in the peripheral visual system, we recorded the thrips' electroretinogram from 365 to 620 nm and determined spectral efficiency. The thrips' electroretinogram is a phasic-tonic cornea-negative potential with no OFF potential change. With both male and female thrips, our results demonstrated two peaks of spectral efficiency, one in the ultraviolet range and one in the visible with lambda(max) around 540 nm. Differences between the sexes were minimal with females having a greater efficiency than males in the ultraviolet. Thus the gender differences in attractiveness of certain colours for the western flower thrips is not solely due to differences in spectral properties of the photoreceptors, but results from higher order processing mediating the behavioural choices of males.